Add Beam Kubernetes Benchmark Definitions

Following and depending on !187 (merged) and with more details see #281 (closed)

Todo:

• Samza:
  • Create uc1-4 Samza kubernetes deployments(deployment, service,...)
  • Test uc1-4 Samza deployments
  • Add Samza Bechnmark CRDs
  • Test Samza Bechnmark CRDs
• Flink
  • Create uc1-4 Flink kubernetes deployments(deployment, service,...)
  • Test uc1-4 Flink deployments
  • Add Flink Bechnmark CRDs
  • Test Flink Bechnmark CRDs
• @she: Image names in deployment files must be replaced before merging
• Add benchmark installation to Helm chart